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(No Moaei.)

D. H. GOLES.

2 Sheets-Sheet 1.

PEEDING MBCHANISM FOR SEWING MACHINES. No. '33315,018. Patented-Jan.26,1886.

I Il '-4 Il.

N. PUERS. Pholo-Lithogmpher. Wnshinglon. n.6.

2 Sheets- Sheet 2.

(No Model.)

D. H. GOLES, PEEDING MBGHANISM POR SEWING MACHINES.

Patented-Jan, 26, 1886.

N. PETERS, PhomLimngnphcr. wnshingmn. D c

miran tirarse .artnr intron.

DAVID H. GOLES, OF NEV YORK, N. Y.

FEEDING MECHANISIVI FOR SEWINGNIVEACHINES.

SPECIFICATION forming part of Letters Patent No. 335,018, dated January26,1886.

Application filed September 3, 1885. Serial No. 176,036. (No model.)

To all whom it may concern:

Be it known that I, DAVID H. GOLES, a citizen of the United States,residing at New York, in the county and State of New York, haveinventednew and useful Improvements in Feeding Mechanism forSewing-lilachines,v of which the following is a specication.

This invention relates to improved feeding mechanism forsewing-machines, which are set forth in the following specification andclaims, and shown in the accompanying draw` ings, in which- Figure 1 isa side elevation, partly in section, ofa sewing-machine containing myinvention. Fig. 2 is an inverted plan view of the same. Fig. 3 is a'section in the plane w fr, Fig. l. Fig. 4 is a section in the planey y,Fig. l. Fig. 5 is a section in the plane z z, Fig. 1. Fig. 6 is a detailof the disk and link for imparting motion to the needle-bar. Fig. 7 is asection on the line a2 x', Fig. 3. Fig. 8 is a section on the line y y',Fig. 5.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates the cloth-plate, and B the arm,of a sewingmachine.

U is the main shaft, which has its bearings in the arm B, and to which arevolving motion is imparted in the usual manner. On this shaft ismounted a cam or eccentric, a, which engages-with the upper end of anoscillating lever, D, which turns on the adjustable or sliding pivot E,and is connected by a link, F, to an arm, G, mounted on one end of therockshaft H. (See Fig. 5.) On the other end of this rock-shaft ismounted an arm, I, which is connected to the lower feed-carrier, J. Thisfeed-carrier slides in bearings K, projecting from the under side of thecloth-plate A, and carries the lower feed-dog, L, which projects througha slot, b, in the cloth-plate and acts on the under side of the fabricto be fed.

As will be understood from the above, the lower feed shown in thedrawings has only a horizontal motion; but a vertical motion may also beadded, if desired, through any of the well-known mechanisms used forthat purpose. The feed-dog L may be made adjustable on the feed-carrierJ, orit may be rigidly secured to it.

In the arm B of the machineis also mounted a rockshaft, M, which servesto actuate the Vupper feed, and which receives its motion from the cama, mounted on the main shaft C.

By preference I transmit the rocking mo tion to the rockshaft M in thefollowing manner: On one end ofthe rock-shaft M is secured an arm, N,the lower rounded end, c, of which engages a notch, d, in the link F,Fig. 5, which receives its motion from the oscillating lever D, as abovedescribed, and as the lever D and the link F oscillate the desiredmotion is imparted to the rock-shaft M. On the opposite end of therock-shaft M is mounted an arm, O, with a pin, e, engaging with a slot,f, in the upper feed-carrier, P, carrying the upper feed-dog, Q, Figs. 3and 4, to which an oscillating motion is given by the movement of therock-shaft M. The oscillation of the up per feed-dog, Q, must obviouslycorrespond to that of the lower feed-dog, L, and for that reason it ispreferred to transmit the motion to the upper feed from the link F,which also moves the lower feed; but it is obvious that a similar resultmight be obtained by directly connecting the rock-shaft M with the mainshaft O or the oscillating lever D.

According to the nature of the work the feeding-surfaces of thefeed-dogs may be either roughened or left smooth; but I prefer to havethe lower one smooth and the upper one roughened.

In order to feed the work properly it is necessary that it should firstbe clamped between the two feed-surfaces as it is pushed forward, andthen be released when said feed-surfaces return to take a fresh grip;but as the latter operation is apt to carry the work back with it Iemploy a presserfoot or stripper, R, secured to the lower end of theslide S, having its bearings in the arm B of the machine. Thispresser-foot or stripper is subject to the action of the spring g, andholds the work in position against the cloth-plate A as the feedsurfacesgo back, but releases the same as soon as the said feed-surfaces havereached the end of their backward movement and have clamped the work fora new forward movement. From this it will be understood that the work isalways held either between the feedsurfaces or between the presser-footor stripper and the cloth-plate, each releasing the work as the IOOother takes hold, and as no unequal stretching takes place both surfacesof the work are fed evenly. To accomplish this operation it is necessarythat either one or both of the feedsurfaces shall have a four-way77 orboth a horizontal and a vertical motion, while the presser-foot orstripper needs a vertical motion only.

I will now proceed to describe the mechanism by which I produce thesevarious movements. On the main shaft G is firmly secured an eccentric,T, which engages the forked lever U. This lever is connected by a pin,t', to the slide S, whichcarries the presser-foot or stripper, and by aslot,-Z, with the pin k,

projecting from the upper feedcarrienP, the

action of the eccentric T on the lever U causing the latter to turnalternately ou the pins z' and lc, as will be described, Figs. 3, 4, and7.

Figs. 3 and 4t show the feeding-surfaces in their eXtreme backwardposition, and while the work is clamped between them and ready for aforward motion, the presser-foot or stripper being raised to permit thelatter operation. To attain this position the pin k has acted as a pivotfor the lever U, and as this lever has been turned on said pin by theaction of the eccentric T the arm of the lever U, carrying the piu l,has been raised,carryiug with it the presser-foot orstripper, therebyleaving the work free to be fed forward bythe forward motion of thefeed-surfaces. 'When the feedsurfaces have reached their extreme forwardposition, the rotation of the eccentric T will have caused the lever tobe turned on the same pin 7e until it has depressed the presser-footsufficiently toward the cloth-plate to hold the work. As the rotation ofthe eccentric continues it will again turn the lever U, but this time onthe pin i in the slide S, which now rests firmly on the work on thecloth-plate, thereby raising the pin k, and with it the upperfeed-carrier, P, releasing the work from the feed-surfaces andpermitting them to move baclqwhen the feed-carrier P will again de-.

scend, clamp the work, and be ready to again feed forward as soon as theoperation of the machine has released the work from the presser-foot.

From this description it will be understood that the work is firmlyheld'either by the feedsurfaces, by which both surfaces of the work areevenly and positively carried forward, or when these release it and goback to get a new grip by the presser-foot. It will further beunderstood that but one of the above--either the feed-surfaces or thepresser-foot-can be in contact with the work at one time, for their thisspring may be adjusted by a set-screw, m, working in a slot, n, in thearm B.

To regulate the length of the stitch, or, inv other words, to adjust thethrow of the two feeds, I employ the following device: The adjustable orsliding pivot E, about which the lever D oscillates, carries a sleeve,W, through which the lever passes loosely.V This sleeve is pivoted in acarriage, X, which is made to move in a slot, o, in the upright portionof the arm B, and may be adjusted therein by a set-screw, p. To lengthenthe throw of the feed, this carriage, with its pivoted sleeve, is movedup toward the main shaft, thereby causing the lower end of the lever D,with the link F, which controls both feeds, to increase its stroke.

If the carriage is moved away from the main shaft, the throw of the feedwill in the same manner be diminished.

In the machine shown the needle-bar Y has a continuous up-and-downmotion imparted to it by a disk, Z, having an eccentric-pin, g, Fig. 6,which is connected to the needle-bar by the link r.

What I claim as new, and desire to secure by Letters Patent, is-

l. The combination, with the machine-arm, of the revolving main shaft C,the upper rockshaft, M, operated at one end by the main shaft, the upperfeed, Q, connected with said rock-shaft, the pivoted oscillating leverD, operated at its upper end by the main shaft, a link, F, connectedwith said oscillating lever, a rock-shaft, H, connected at one end withsaid link, and a feed-carrier, J, connected with the other end of therock-shaft and yoperated thereby in a right line, substantially asdescribed.

2. The combination, with the machine-arm, of the revolving main shaft C,the upper rockshaft, M, operated at one end by the main shaft, the upperfeed-carrying bar, P, connected with the rock-shaft, the pivotedoscillating lever D, operated at its upper end by the main shaft, thelink F, connected at one end with the oscillating lever, the lower rock-IOO IIO

shaft, H, having at one end an arm, G, connected with said link, anarni, I, attached to the other end of said lower rock-shaft, and aguided lower feed-carrying bar, J, pivoted to said latter arm and movedthereby in a right line, substantially as described.

3. The combination, with the machine-arm, of the revolving shaft C,theupper rock-shaft, M, the upper feed-carrying-bar, P, connected with oneend of the rock-shaft, a pendent arm, N, secured to the latter, apivoted oscillating lever, D, operated by the main shaft, a link, F,connected with the oscillating lever and with the pendentarm of theupper rock-shaft, a lower rock-shaft, H, connected at one end with saidlink, and a feed-carrier, J, connected with the other end of said lowerrock-shaft, substantially as described.

4. The combination, with the sewing-machine arm, of the pivotedoscillating lever D, the link F, pivotally connected with the lower endof said lever, the rocking shaft H, connected at one end with the link,the feed-carrier J, connected with the other end of the rock-shaft andreciprocated thereby in a right line, an upper feed-carrying bar, P, andcon nections between said upper feed-carrying bar and the oscillatinglever, substantially as described.

5. The combination, With the sewing-machine arm, of the revolving mainshaft C, provided with a cam, a, the pivoted oscillating lever D,operated by said cam, the link F, connected with the lowerend of theoscillatinglever, the rock-shaft H,connected at one end with the link,the lower feed-carrier, J, connected with the other end of therock-shaft and moved thereby in a right line, and the upper feed, Q,connected with the said oscillating lever and receiving its motiontherefrom to synchronously move both the upper and lower feeds by thesaid oscillating lever, substantially as described.

6. The combination, with the lower feed carrier, J, the rock-shaft H,the link F, connected with the latter, the pivoted oscillating lever D,carrying the link, the revolving main shaft C, and the rock-shalt M, ofthe feed and presser bars P and S, and thelever U, operated by the mainshaft and pivotally connected with the feed and presser bars,substantially as described.

7. The combination, with the upper and lower feed-carriers, therock-shaft H, connected with the lower feed-carrier, the link F, theoscillating lever D, the main shaft C, and the rock-shaft M, connectedwith the oscillating lever, of the adjustable sliding pivot E, carrying`the said oscillating lever and serving as a pivot therefor,substantially as described.

In testimony whereof I have hereunto set my hand and seal in thepresence of two subscribing Witnesses.

DAVID H. GOLES. [.L. s] Vitn esses:

A. FABER DU FAUR, J r. E. F. KASTENHUBER.

